Malicious PDF — malware analysis report

Static analysis result for SHA-256 b117205194ba1a45…

MALICIOUS

PDF

185.6 KB Created: 2015-07-24 15:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c53099d8154b9e552d249c273d16e588 SHA-1: 91117d5a0466741d61198cd5bfd1a90cf706ae96 SHA-256: b117205194ba1a453d564716bb23b0eca0e9177dcbb53d125521fe3e916c2560
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was not parsable as human-readable text.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D0%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F+%D1%81%D1%85%D0%B5%D0%BC%D0%B0+%D0%BA%D0%B0%D0%BC%D0%B0%D0%B7+6520&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185007_kak_reshat_s1_egye_po_matematike_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192677_driverpack_solution_14_skachat_besplatno_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185224_raspiska_v_poluchenii_deneg_pod_zalog_obrazec.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024053.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24053 3556 bytes
font_01_sfnt_off00024dd6.bin
d8d98e8be5973b62baeba212074b861a6d1a2a580d5b2fc7d0eeaa1e07e75236		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DD6 15000 bytes
font_02_sfnt_off00027c5d.bin
ceeb23b39f5ee4154f2a8671c588b856c035daf4f1ba1d2f89fbf4d1c27db3f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C5D 14936 bytes
font_03_sfnt_off0002a880.bin
588bce8a3121d593f14da4bd81e1453aee3c7ec5000e3986ba342e96e8e7e894		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A880 6876 bytes
font_04_sfnt_off0002bc76.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC76 6084 bytes
font_05_sfnt_off0002cc0b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC0B 3752 bytes

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